<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>02无序列表</title>
    <style>
        /* 
            去掉默认的样式

            一般在开发中，我们都是自己控制样式
        */
        body,
        ul,
        li,
        h1,
        p {
            padding: 0;
            margin: 0;
            list-style-type: none;
        }
    </style>
</head>

<body>
    <div>
        <h1>编程语言</h1>
        <ul>
            <li>
                <span>1</span>
                java
            </li>
            <li>
                <span>2</span>
                c++
            </li>
            <li>
                <span>3</span>
                javascript
            </li>
        </ul>
    </div>
</body>

</html>